Elevator



2 Sheets-Sheet 1.

(No Mdel.)

JQW. ROBERTS. BLBVATOR.

No.. 416,301. Patented Deo. 3, 1889.

Wlnes es fm W (No Model.) 2 Sheets-Sheet 2.

J.W.ROBERT& ELEVATOR.

1\To.l3.16,301. y13a/sented Dec. 3, 1889.

UNITED STATES' PATENT OFFICE.

JOSEPH XV. ROBERTS, OF ROGERS, ARKANSAS.

ELEVATOR.

SPECIFIGA'IIN forming part of Letters Patent Llc/416,301, dated December 3, 1889.

Application filed October 9, 1889. Serial No. 326.505. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH W. ROBERTS, a citizen of the United States, residing at Rogers, in the county of Benton and State of Arkansas, have invented a 'new and useful Elevator, of which the followingis a specification.

This invention relates to elevators; and it has for its object to provide the elevator with a cleaning device in the nature of either a brush or a scraper, whereby the legs of the elevator shall be kept constantly and automatically clean and free from impurities. The invention consists in a frame hinged to the elevator-bell and kept in position by means of springs, and provided-with brushes or scrapers secured thereto detachably, as will be hereinafter more fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a vertical sectional view of an elevator equipped with my improvement. Fig. 2 is a perspective view showingthe cleaning device detached. Fig. 3 is a perspective view showing the parts constituting the cleaning device separated or detached from each other. Fig. i is a view showing` the cleaning device equipped with scrapers instead of brushes. Fig. 5 is a transverse sect-ional view of the cleaning device.

Like numerals of reference indicate like parts in all the figures.

1 1 designate the legs of the elevator, which is of ordinary constructiomand which is provided at its upper and lower ends with bearings t'or the transverse shafts 2 and 3, carrying the upper and lower band-wheels 4 5, which serve to support the endless belt or band 6,upon which the buckets 7 are attached in the. usual manner.

S designates a metallic frame, which is secured to the elevator-belt by means of hinges 9, and the outer end of which is connected with the said elevator-belt by means of springs 10, which serve to retain the said frame normally in a position at right angles to the said belt.

The springs 1 0 may be ordinary coiled springs, as shown in the drawings hereto annexed; butin lieu thereof lat supportingsprings may be attached to the belt and arranged to bear against the under side of the frame 8, or springs of any other desired construction and arrangement maybe employed, in case they shall be found more convenient and eticient.

The i rame S, which, as stated, is constructed of metal, is composed of the side pieces 11 11, the inner ends of which are connected to the elevator-belt 4by the hinges 9, and the other ends of which are connected by the integral cross-bar 12. The upper side of the cleanerframe is beveled, as shown at 13, in order to prevent-any particles of dust or impurities from settling upon the upper surface, and the under side of said frame is provided with downwardly-extending bolts 14.

15 15 designate brushes, which are provided with slots 16, by means of which they may be mounted adjustably upon the bolts 14, eX- tending downwardly from the frame S, nuts 16 being employed for the purpose of retaining the said brushes securely in position. The brush-frames, especially that portion ot' said frames which projects beyond the frame 8, are provided with numerous perforations 17, in order `to prevent particles of impurities from lodging thereon.

The operation of this device will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. The brush-carrying frame, in itspassage through the legs of the elevator, will dislodge any impurities which may lodge therein, and thus keep the elevator constantly and automatically clear for the passage of the buckets.

When desired, metallic scrapers such as shown at 18 may be substituted for the brushes. Said scrapers are constructed of metal and are provided with slots 19 to receive the bolts 14, extending downwardly from the frame 8. .The scrapers are furthermore provided with perforations 20, to prevent particles of impurities from lodging thereon.

In that class of elevators which are employed in flouring-mills it frequently happens that particles of moist our will attach themselves to the inner sides of the' elevator-legs, where a layer of dough is thus eventually formed,which in the course of time ferments. Then this layer grows in thickness, it will become detached by the-action of the buck- IOO ets and beeome mixed with the flour, to the greatinjury and detrimentof the latter. By my invention this is efieetually avoided and the interior of the elevator is continually and automatically kept clean and pure.

Thilo I have herein described the preferred Construction of my improved cleaning deviee for elevators, I desire it to be understood that I do not limit myself to the preeise details of eonstruetioii, but reserve the right `to any modifications which properly fall within the spirit and scope of my invention.

Having thus described my invention, what I elaim, and desire to seeure by Letters Patent, 1s-

l. In an elevator, the combination, with the bucket-belt, of a cleaner-frame hinged to the said belt, substantially as and for the purpose set forth.

2. The Combination, with an elevator-belt, of a eleanersframe hinged to the same, and springs arranged to support the same normally in a position at about right angles to the said belt, substantially as set forth.

3. In an elevator, the e0mbination,with the bucket-belt, of the hinged cleaner-frame and cleaning devicessuoli as brushes or serapers-attached adjustably to the said frame, substantially as set forth.

L The combination, with the bucket-belt, of the hinged cleaner-frame, the supporting- Springs and cleaning devices-suoli as brushes or Scrapers-attached adj ustably to the said frame, substantially as set forth.

o. 'lhe combination, with the lnieket-belt, of the hinged Cleaner-frame having beveled upper side, and the cleaning devices-suoli as brushes orserapers-having slots whereby they are mounted adjustably upon bolts depending from the under side -of said frame, substantially as set forth.

The combination ot' the bucket-belt, the hinged cleaner-frame having beveled upper side and downwardlyextending bolt-s, and the cleanerssuch as brushes or .Scrapershavingl slots whereby they are mounted detaehably upon the said bolts, and provided with vertical perforations, substantially as and for the purpose set forth.

7. The combination of the bucket-belt, the hinged cleaner-frame havingr beveled upper side and provided with downwardly-extend ing` bolts, the supporting-sprlugs connecting ille upper side of said frame with the bue-ket- Vbelt, and the eleaners-sueh as brushes or Scrapersmounted adj ustably upon the downwardly-extending bolts, and having vertieal perforations formed in the portions of said cleaners which project beyond the edge of the frame, substantially as set forth.

In testimony that I Claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

JOSEPH lV. ROBERTS.

"itnesses:

W. J. CURRY, FRED APPLEGATE. 

